That was most evident on the Eagles' final offensive series, when they drove down the field quickly but settled for a game-tying field goal with 1:51 left in the game. That was more than enough time for the Chargers to march their way to the game-winning field goal.

The Eagles started their drive with 3:11 left in the game trailing by three points. They had a first down on San Diego's 14 with 2:09 remaining. At that point, they rushed to the line of scrimmage, quarterback Michael Vick was hurried and threw an off-balance pass that was incomplete. On the play, Vick took a shot from San Diego's Jarius Wynn. Vick was slow to get up and was ordered to leave the field by the referees.

Kelly didn't take a timeout, which would have enabled the Eagles to keep Vick on the field. Instead, backup Nick Foles came into the game and threw an incomplete pass. Vick returned on the next play and also misfired on third down.

Kelly said Sunday that he couldn't take a timeout in that situation. On Monday, he admitted he was wrong.

"That's on me," Kelly said. "I didn't think we could. I just thought that was on me. I should have asked."

That first-down pass by Vick, however, highlighted perhaps another mistake. The Eagles could have let the clock run down to the two-minute warning, then milked the clock a little more before either scoring a touchdown or kicking the field goal.

"When you look at it in hindsight, we didn't score," Kelly said. "We kicked a field goal, so it was tied. We wanted to try to score a touchdown and go up by four (points) and then make them drive the entire field at that point in time.

"So obviously when you look back at it, we probably should have ran the clock down."

The clock management issues were only part of the Eagles' problems, of course. They allowed the Chargers to rack up 539 yards of offense. The defense couldn't pressure San Diego quarterback Phillip Rivers and the defensive backs, particularly Nate Allen, couldn't stop Rivers from completing numerous third down passes. The Chargers went 10-for-15 on third down.

The Eagles defense has allowed 60 points in two games.

It wasn't just Allen, either.

Cornerback Cary Williams was flagged three times for pass interference (one was declined). And Kelly said rookie Earl Wolff, who came in for - and played with - Allen at safety, still has a lot to learn.

That's why Kelly said Wolff isn't quite ready to become the starter in place of Allen.

"Earl is growing and we'll continue to grow him," Kelly said. "But he's still making some mistakes out there. I think they're bringing him along, and we're excited about his future. We still don't feel he's ready to go the whole way."

The Eagles also made their share of mistakes on offense. That included dropped passes and a penalty that negated a touchdown.

"I've made mistakes. I think we've all made mistakes," Kelly said. "That's what this game is all about. No one coaches a perfect game. No one plays a perfect game. But you have to learn from those mistakes and hope they don't happen again."

The Eagles have to hope so. Kelly said of the 31 NFL games played so far, 22 of them have been decided by seven points or less.

"That just makes us understand how important it is to execute every single snap," Kelly said.